User manual ROLLS MX28

MX28 Mini-Mix VI LEVEL 2 R LIMITED WARRANTY This product is warranted to the original consumer purchaser to be free from defects in materials and workmanship under normal installation, use and service for a period of one (1) year from the date of purchase as shown on the purchaser's receipt. The obligation of Rolls Corporation under this warranty shall be limited to repair or replacement (at our option), during the warranty period of any part which proves defective in material or workmanship under normal installation, use and service, provided the product is returned to Rolls Corporation, TRANSPORTATION CHARGES PREPAID. Products returned to us or to an authorized Service Center must be accompanied by a copy of the purchase receipt. In the absence of such purchase receipt, the warranty period shall be one (1) year from the date of manufacture. This warranty shall be invalid if the product is damaged as a result of defacement, misuse, abuse, neglect, accident, destruction or alteration of the serial number, improper electrical voltages or currents, repair, alteration or maintenance by any person or party other than our own service facility or an authorized Service Center, or any use violative of instructions furnished by us. This one-year warranty is in lieu of all expressed warranties, obligations or liabilities. ANY IMPLIED WARRANTIES, OBLIGATIONS, OR LIABILITIES, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, SHALL BE LIMITED IN DURATION TO THE ONE YEAR DURATION OF THIS WRITTEN LIMITED WARRANTY. Some states do not allow limitations on how long an implied warranty lasts, so the above limitation may not apply to you. IN NO EVENT SHALL WE BE LIABLE FOR ANY SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES FOR BREACH OF THIS OR ANY OTHER WARRANTY, EXPRESSED OR IMPLIED, WHATSOEVER. Some states do not allow the exclusion or limitation of special, incidental or consequential damages so the above limitation or exclusion may not apply to you. This warranty gives you specific legal rights, and you may also have other rights which vary from state to state. · Three stereo inputs - 2: 1/4" unbal per channel. · Individual 1/4" Right and Left outputs · Pan control for each channel · Two Headphone outputs The MX28 is the ideal mixer for anyone needing to mix up to three stereo signals. Keyboards, stereo guitar effects, even sources like CD players or cassette players can be mixed together maintaining their true stereo separation. MX28 MINIMIX VI SPECIFICATIONS Input Impedance: Output Impedance: Max Gain: Max Input Level: Max Output Level: Frequency Response: THD + Noise: Power: Weight: Size: Rolls Corporation Salt Lake City, UT 9/95 1 LEVEL 1 PAN 1 L 10K W 100 W +27 dBV +30 dBV +13 dB 20Hz - 20kHz +/- 1 dBV <.005% 12 VDC 150 mA adapter (center negative) 1.2 lbs. (.49 Kg) 4.25" x 1.75" x 4.5" (WxHxD) STEREO MINI-MIX VI L LEVEL 3 R L 2 PAN 2 PAN 3 Owners Manual 12 - 16 VDC DC IN + - HEADPHONE LEVEL OUTPUT L 3 MASTER LEVEL R PHONE OUTS MX28 R Thank you for your purchase of the MX28 MiniMix VI. The MX28 is a three channel true stereo mixer designed for keyboard or other stereo line level signal mixing. INSPECTION 1. Unpack and inspect the MX28 box and package. If obvious physical damage is noticed, contact the carrier immediately to make a damage claim. We suggest saving the shipping carton and packing materials for safely transporting the unit in the future. 2. Please complete the Warranty Registration Card and return it to the factory. OPERATION Shown below is an example setup for the MX28. The power adapter is not shown. It should be conected to the proper voltage, grounded AC outlet. To mixer or recording device (MIDI Signal) DC IN R L R L R L R OUTPUT 1 2 3 12 - 16 VDC L + - DESCRIPTION FRONT PANEL MX28 LEVEL LEVEL LEVEL Synth Module STEREO MINI-MIX VI MX28 1 BAL 2 BAL 3 BAL MASTER LEVEL HEADPHONE LEVEL LE.T 1U C8 1U R6 10K R12 4 .7 K C9 120P. R13 47K 4 phone Output. PAN 1 - 3: varies the relative amount of right and left signal from the channel to the mix bus. PHONE OUTS: Two 1/4" TRS Stereo jacks for connection to stereo headphones. REAR PANEL CHANNEL1O. 3 4 .7 K R3 47K P100K X2 1 2 LEVEL 1 - 3: Volume Controls: Adjusts the amount of input signal to the indicated channel. MASTER LEVEL: Master volume control, adjusts the amount of overall signal sent to the Main Right and Left outputs. HEADPHONE LEVEL: Adjusts the amount of signal sent to the Head- Synth Module LEVEL 1 BAL LEVEL 2 BAL LEVEL 3 BAL MASTER LEVEL HEADPHONE LEVEL SCHEMATIC R2 C2 1U C3 120P. P4A 3 LE.T R32 100 7 C19 10U P H O N E 1 /4 J11 6 8 M O N O /R IG H T P H O N E 1 /4 J1 C1 1U P1B P100K X2 5 VCC 4560 U1B R7 R4 10K BAL 4560 U1A R9 10K R5 10K P7 P100K R10 VB 10K R31 6 5 8 7 R8 47K C6 120P. VCC 4560 U4B 6 1K VB R1 10K P1A P100K X2 2 4 5 VB 4 C5 3 1U R33 100K 2 4 .7 K 5 P H O N E 1 /4 J2 C4 1 6 P4B P100K X2 4560 1 U4A 3 R IG H T J10 R35 100 C20 10U R36 100K PHONE 1 /4 " VB R34 1K 2 3 1 VB 6 8 M O N O /R IG H T P H O N E 1 /4 J3 DC IN L R L R L R L OUTPUT 1 2 3 6 R + - P H O N E 1 /4 J6 8 12 - 16 VDC 3 CH 1 - Ch 3 INPUTS: 1/4" unbalanced inputs The Right input is the MONO input. Right and Left MAIN OUTPUTS: 2: 1/4" unbalanced outputs containing the three mixed stereo signals. DC IN: Power jack - accepts +12 to +16 volts DC (outside of the barrel is positive). C7 1U R11 10K P2A P100K X2 2 3 C11 1U R17 BAL 4560 2 4 .7 K P H O N E 1 /4 J5 C10 1U 3 U2A 1 R19 10K C22 47U J9 30 Q2 2N 2907 4 7 U5B 5 1 P P10 P10 P 6A 0K X2 0K X2 6B 2 VB 5 U2B 7 8 P2B P100K X2 5 VCC 6 4560 R18 47K C12 120P. R14 10K R15 10K P8 P100K R20 VB 10K P H O N E 1 /4 J8 VCC M PSA06 R39 10 Q1 4 VCC R38 4560 C21 120P. 6 R37 1K 3 VCC P H O N E 1 /4 R42 VB LE.T R16 10K 1 Q3 M PSA06 1 R41 30 Q4 2N 2907 4560 U5A 4 3 VB 2 C23 120P. 6 4 R22 C14 1U 4 .7 K R23 47K 4 C15 120P. C24 47U 5 R40 1K 10 M O N O /R IG H T C13 1U P3B P100K X2 5 VCC 6 5 U3B 4560 R24 10K BAL 4560 U3A R29 R25 J4 10K P9 P100K R30 VB 10K D1 1N 4001 VCC VCC R43 18K C25 1KU. R44 C26 47U 22K D 2L D S G Q5 2N 3904 VB 7 VB R21 10K P3A P100K X2 2 C17 1U R27 R28 47K C18 120P. 2 3 1 503 C27 R45 POW ER 2K 4 2 4 .7 K P H O N E 1 /4 J7 C16 1U 1 10K JA P D C 3 VB LE.T R26 10K 4 R O L L S C O R P O R A T IO N 5 1 4 3 S o u th M a in S tr e e t S a lt L a k e C ity , U T 8 4 1 0 7 T itle S iz e M X28 THREE CHANNEL STEREO M IX E R Rev A 1 Document Number: Ba M X 2 8 .S C H Date: 22-Apr-1999 Sheet 1 of 1